Home / 930,812,146.34-1,284,529,426.27-513,139,378.28

Finding the Fourth Proportional to 930,812,146.34, 1,284,529,426.27 and 513,139,378.28

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Solution

The fourth proportional to 930,812,146.34, 1,284,529,426.27 and 513,139,378.28 is: 708,137,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,812,146.34 : 1,284,529,426.27 = 513,139,378.28 : x
  2. Step 2: Convert to fraction form
    930,812,146.34/1,284,529,426.27 = 513,139,378.28/x
  3. Step 3: Cross multiply
    930,812,146.34x = 1,284,529,426.27 × 513,139,378.28
  4. Step 4: Simplify right side
    930,812,146.34x = 659,142,631,170,847,360
  5. Step 5: Solve for x
    x = 659,142,631,170,847,360/930,812,146.34
  6. Step 6: Final answer
    x = 708,137,118.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.